/*
 * Copyright (C) 2003, 2004 Rex Ford
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
package GamePlay;
public class GamePlay implements Runnable 
{
	private boolean levelIsGoing;
	private int level;
	private GameDisplay display;
	private GOFactory factory;
	private GameEnv theEnv;
	public Thread gameThread = new Thread(this);
	
	public GamePlay(int theLevel, GameDisplay theDisplay, GameEnv env) 
	{
		theEnv = env;
		level = theLevel;
		factory = new GOFactory(level,theEnv);
		display = theDisplay;
		levelIsGoing = true;
		gameThread.start();
	}
	
	public void greenLight(boolean isIt)
	{
		levelIsGoing = isIt;
	}
	
	public void run() 
	{
		long theTime;
		long timeLastFrame=0;
		long spaceFromLast=0;
		display.drawBG();
		while (levelIsGoing) 
		{	
			if(!theEnv.paused)
			{
				try 
				{
						Thread.sleep(1000/65);
				} 
				catch (InterruptedException e) 
				{
					System.out.println("GamePlay was interupted");
				}
				theTime = System.currentTimeMillis();
				spaceFromLast= theTime-timeLastFrame;
				timeLastFrame =  theTime;
				
				//so the ships are just now drawn...
				display.clearOldSpace();
				theEnv.pulse(spaceFromLast);	//tell the environment to step
				factory.pulse(spaceFromLast); 	//maybe make some new environment objects
			}
			else
			{
				try 
				{
						Thread.sleep(500);
				} 
				catch (InterruptedException e) 
				{
					System.out.println("GamePlay was interupted");
				}
				
				theTime = System.currentTimeMillis();
				timeLastFrame=theTime;
			}
			display.pulse(spaceFromLast);		//show what's going on...
		}
	}
	
	public void pause()
	{
		levelIsGoing = false;
	}
}
